What are the common quality problems of aluminum curtain wall projects?

1. Aluminum composite panel discoloration and decoloration

Aluminum composite panel deterioration and decolorization are primarily caused by poor panel selection. Aluminum composite panels are classified as indoor panels or outdoor panels based on their surface treatment, which impacts their suitability for various applications. The surface of the panels used indoors is typically sprayed with resin coating, which cannot adapt to the harsh natural environment outdoors, and if used outdoors, it would naturally accelerate the aging process and produce discoloration and decolorization. The anti-aging and anti-UV capabilities of fluorocarbon resin coating are commonly chosen for outdoor aluminum composite panel surface coating; nevertheless, the price of this plate is high. To squeeze unjustified profits, some construction units fool the owner into utilizing the indoor plate as the anti-aging and anti-corrosion quality fluorocarbon plate, causing major deterioration and decoloration of the aluminum plate used in the project.

2. Opening and dropping of aluminum composite panels.

Aluminum composite panels open and fall off due to poor adhesive choices. Silicone glue has unique and excellent characteristics as the best adhesive for outdoor aluminum composite panel projects. Previously, China's silicone adhesive was primarily dependent on imports, which deterred many people, leaving only high-rise buildings with expensive curtain wall projects to ask for. Now, numerous brands of silicone rubber are being manufactured in China's Zhengzhou, Guangdong, and Hangzhou, resulting in a significant drop in prices. Now, while purchasing aluminum composite panels, the salesperson will recommend a specific fast-drying adhesive. This glue can be used indoors or outdoors, depending on the conditions. There will be plates open glue, and glue of the occurrence.

3. Surface deformation expansion in aluminum composite panels.

There are numerous sources of deformation and pounding on the surface of an aluminum composite panel. Previously, in the construction, we thought that the quality of the plate itself was the problem; later, after focusing on the analysis only, we discovered that the main problem in the paste aluminum composite plate on the grass-roots plate, followed by the quality of the aluminum composite plate itself. Dealers frequently offer us the aluminum composite panel construction process; the recommended base material is a primarily high-density board, woodworking board, and so on. This type of material in outdoor use has a relatively short service life since it is easily deformed by wind, sun, and rain. Since the base materials are distorted, is there any reason for the surface layer of the aluminum composite panel to be deformed? After rust-proof treatment, the optimum exterior basis material should be angle steel, square steel pipe knotted into the skeleton is better. If the conditions permit, using aluminum profiles as a skeleton is preferable.

This type of metal material, which is composed of skeletons and costs not much more than a wood keel, high-density board, may guarantee the project's quality.

4. tidy the glue seam of the aluminum plastic panel cleanup

There is typically a space between the aluminum composite panels when they are adorned on a building's exterior. Typically, black sealant is required to close the gap for aesthetic reasons. Some builders choose to utilize the protective film on the surface of an aluminum composite panel in place of paper tape to ensure neatness and adhesion standards to save time. It is impossible to precisely and tidily clean up the glue seam when using protective film as a substitute for protective tape because as the aluminum composite panel is cut, it will produce varying degrees of tearing situations.